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$49+ Cheap flights from Illinois to California

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/21. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LAX
Nov 26 — Dec 31
Tue 11/26
Tue 12/3
1 adult, Economy
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Cheap flight deals from Illinois to California

Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) to California (USCA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 21, 2024.

Find flight deals from Illinois to California

Cheapest flights from Illinois to California
Explore the most affordable flight options available from Illinois to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2024.

This Cheapflightsfares deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/96:20 amORD - LAS
1 stop15h 12mFrontier
Mon 12/1611:55 pmLAS - ORD
1 stop12h 31mFrontier
Deal found 11/19$106
This Kiwi.com deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/176:20 amMDW - LAS
1 stop9h 18mFrontier
Thu 12/1911:59 pmLAS - MDW
Nonstop3h 34mFrontier
Deal found 11/20$107
This Kiwi.com deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/116:33 pmORD - LAS
1 stop14h 06mMultiple Airlines
Fri 12/131:06 pmLAS - ORD
1 stop9h 39mMultiple Airlines
Deal found 11/20$108
This Flightnetwork deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/89:53 pmORD - LAS
Nonstop4h 06mSpirit Airlines
Tue 12/177:11 pmLAS - ORD
1 stop14h 54mSpirit Airlines
Deal found 11/20$112
This Frontier deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/167:25 amORD - BUR
1 stop9h 41mFrontier
Mon 12/2311:18 amBUR - ORD
1 stop10h 28mFrontier
Deal found 11/20$128
This Frontier deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/164:57 pmSTL - LAS
1 stop7h 28mFrontier
Thu 12/196:35 amLAS - STL
1 stop10h 45mFrontier
Deal found 11/19$128
This Mytrip deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/57:25 amORD - ONT
1 stop18h 19mFrontier
Wed 12/1112:34 pmONT - ORD
1 stop26h 54mFrontier
Deal found 11/20$133
This Cheapflightsfares deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/109:10 pmORD - BUR
1 stop13h 35mSpirit Airlines
Thu 12/129:04 pmBUR - ORD
1 stop6h 26mSpirit Airlines
Deal found 11/19$139
This Kiwi.com deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/109:10 pmORD - SAN
1 stop14h 05mSpirit Airlines
Fri 12/136:15 amSAN - ORD
1 stop6h 11mSpirit Airlines
Deal found 11/19$145
This Kiwi.com deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/126:36 pmORD - SAN
1 stop26h 34mFrontier
Thu 12/196:25 amSAN - ORD
1 stop11h 09mFrontier
Deal found 11/20$146
This Kiwi.com deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/119:10 pmORD - SAN
1 stop13h 03mMultiple Airlines
Thu 12/196:25 amSAN - ORD
1 stop11h 09mMultiple Airlines
Deal found 11/20$149
This Kiwi.com deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/76:46 pmSTL - LAS
1 stop7h 16mMultiple Airlines
Mon 12/910:27 pmLAS - STL
1 stop14h 54mMultiple Airlines
Deal found 11/20$151

Find flights from Illinois to California within your budget

Customize your flight search to find flights from Illinois to California that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,629,791 searches. Data last updated November 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Sat 1/4

4:21 pm-6:59 pm

1 stop28h 38m

Las Vegas Harry Reid Intl

Sat 1/11

11:55 pm-9:14 am

1 stop7h 19m

$106

ChicagoLas Vegas

MDW - LAS

MDWLAS

Chicago Midway

Mon 1/6

8:41 pm-11:04 pm

Nonstop4h 23m

Las Vegas Harry Reid Intl

Thu 1/9

6:11 am-11:48 am

Nonstop3h 37m

$106

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Sat 1/4

9:54 pm-11:59 pm

Nonstop4h 05m

Las Vegas Harry Reid Intl

Sat 1/11

11:55 pm-9:14 am

1 stop7h 19m

$107

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Sun 12/8

9:53 pm-11:59 pm

Nonstop4h 06m

Las Vegas Harry Reid Intl

Tue 12/17

7:11 pm-12:05 pm

1 stop14h 54m

$112

ChicagoBurbank

ORD - BUR

ORDBUR

Chicago O'Hare Intl

Mon 12/16

7:25 am-3:06 pm

1 stop9h 41m

Burbank Bob Hope

Mon 12/23

11:18 am-11:46 pm

1 stop10h 28m

$128

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Mon 12/16

4:57 pm-10:25 pm

1 stop7h 28m

Las Vegas Harry Reid Intl

Thu 12/19

6:35 am-7:20 pm

1 stop10h 45m

$128

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Thu 12/5

7:25 am-11:44 pm

1 stop18h 19m

Ontario

Wed 12/11

12:34 pm-5:28 pm

1 stop26h 54m

$133

ChicagoBurbank

ORD - BUR

ORDBUR

Chicago O'Hare Intl

Tue 12/10

9:10 pm-8:45 am

1 stop13h 35m

Burbank Bob Hope

Thu 12/12

9:04 pm-5:30 am

1 stop6h 26m

$139

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

Tue 12/10

9:10 pm-9:15 am

1 stop14h 05m

San Diego

Fri 12/13

6:15 am-2:26 pm

1 stop6h 11m

$145

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

Thu 12/12

6:36 pm-7:10 pm

1 stop26h 34m

San Diego

Thu 12/19

6:25 am-7:34 pm

1 stop11h 09m

$146

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

Showing 1-10 of 60 results
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Best time to book a flight from Illinois to California

Have a flexible travel schedule? Discover the best time to fly to California from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Illinois to California

Get recent, data-driven insights about flights from Illinois to California including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Illinois to California?

Currently, September is the cheapest month in which you can book a flight from Illinois to California (average of $240). Flying from Illinois to California in July is currently the most expensive (average of $321). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IL to CA?

Find hourly flight availability from Illinois to California. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 21, 2024.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to California as you normally would.

Weekly flight availability from Illinois to California

Explore weekly flight availability from Illinois to California. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated November 21, 2024.

The most flights from USIL to USCA are scheduled on a Monday (107 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (63 on average).

Rainfall in California by month

Plan your trip to California by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in California ranges from 0.0 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. July is typically the driest time to visit California when rainfall is around 0.0 in.

Temperature in California by month

Plan your trip to California by taking into account the average temperature totals by month.

If weather is an important factor for your trip to California, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

Reviews of airlines servicing California

Get insights into the airlines that provide service to California. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to California. Reviews last updated November 21, 2024.
See what other customers who have flown with Southwest, United Airlines and Spirit Airlines from Illinois to California have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,015 reviews

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.2

Entertainment

7.7

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Southwest
8.1
Very good
5,015 reviews
Southwest
8.1
Very good
5,015 reviews

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.2

Entertainment

7.7

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Alaska Airlines
8.0
Very good
9,458 reviews
Southwest
8.1
Very good
5,015 reviews

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.2

Entertainment

7.7

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Delta
8.0
Very good
8,758 reviews
Southwest
8.1
Very good
5,015 reviews

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.2

Entertainment

7.7

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Aeromexico
7.5
Good
2,004 reviews
Southwest
8.1
Very good
5,015 reviews

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.2

Entertainment

7.7

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

United Airlines
7.4
Good
9,172 reviews
Southwest
8.1
Very good
5,015 reviews

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.2

Entertainment

7.7

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Related info for your journey

Find useful and relevant information for your journey from Illinois to California. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Illinois to California one-way?

    For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $49. Users have also found prices from $50 and $85 on Frontier and Southwest, respectively.

  • Can I find deals for flights from Illinois to California that include hotel bookings?

    Yes. In addition to deals on Illinois to California flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to California?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to California.

  • Can I find deals for business class flights from Illinois to California?

    Yes. Cheapflights offers flight deals from Illinois to California by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Illinois to California?

    Currently, September is the cheapest month in which you can book a flight from Illinois to California (average of $240). Flying from Illinois to California in July is currently the most expensive (average of $321). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Illinois to California

See prices for flight routes from nearby airports that may be better suited for you.
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Top 9 airlines flying from Illinois to California

Discover the top 9 airlines that operate flights from Illinois to California. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,629,791 searches. Data last updated November 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$54Average$162FlexibilityNo cancel feeOn-time88%
FrontierCheapest$82Average$212FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$89Average$251FlexibilityNo cancel feeOn-time65%
Alaska AirlinesCheapest$136Average$423FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$137Average$478FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$167Average$487FlexibilityNo cancel feeOn-time71%
DeltaCheapest$171Average$425FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$201Average$443FlexibilityNo cancel feeOn-time63%
Sun Country AirCheapest$249Average$350FlexibilityNo cancel feeOn-time83%
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